ShkvarkovskyІ.V., O.P Moskaliuk, BrindakІ.A., and O.B. Rusak. 2017. “Role of Endoscopic Retrograde Cholangiopancreatography in the Differential Diagnosis of Biliary Tract Diseases”. Reports of Vinnytsia National Medical University 20 (1(2), 257-60. https://reports-vnmedical.com.ua/index.php/journal/article/view/357.